Interesting, my friend in Somerset and her sister had the Oxford vaccine on Sunday. The both had 24 hour flu symptoms. Headache, muscle pain, sore arm and shivers. Both now feel better. I have emailed her to tell her,Mac and Norman, that you both had the same vaccine with no after affects. My husband and I had the Pfizer vaccine, he had no problems, but I had a stiff arm for a couple of days, so everyone reacts differently.